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From "Lars Hofhansl (Created) (JIRA)" <j...@apache.org>
Subject [jira] [Created] (HBASE-5547) Don't delete HFiles when in "backup mode"
Date Fri, 09 Mar 2012 05:16:05 GMT
Don't delete HFiles when in "backup mode"
-----------------------------------------

                 Key: HBASE-5547
                 URL: https://issues.apache.org/jira/browse/HBASE-5547
             Project: HBase
          Issue Type: New Feature
            Reporter: Lars Hofhansl


This came up in a discussion I had with Stack.
It would be nice if HBase could be notified that a backup is in progress (via a znode for
example) and in that case either:
1. rename HFiles to be delete to <file>.bck
2. rename the HFiles into a special directory
3. rename them to a general trash directory (which would not need to be tied to backup mode).

That way it should be able to get a consistent backup based on HFiles (HDFS snapshots or hard
links would be better options here, but we do not have those).

#1 makes cleanup a bit harder.


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